Last year, images from NASA's Mars Reconnaissance Orbiter captured sand dunes and ripples moving across the surface of Marsobservations that challenged previously held beliefs that there was not a lot ...

(Phys.org) —The presence of liquid water at and beneath frozen Alaskan sand dunes during Arctic winter suggests that liquid water could also be temporarily stable (or metastable) at frost-covered sand dunes ...

Sharks were a tolerant bunch some 50 million years ago, cruising an Arctic Ocean that contained about the same percentage of freshwater as Louisiana's Lake Ponchatrain does today, says a new study involving ...

(PhysOrg.com) -- In a special double flyby early next week, NASA's Cassini spacecraft will visit Saturn's moons Titan and Dione within a period of about a day and a half, with no maneuvers in between. A fortuitous ...

Policy makers need to be cautious in setting new 'low-carbon' standards for greenhouse gas emissions for oil sands-derived fuels as well as fuels from conventional crude oils University of Calgary and University of Toronto ...

(Phys.org) —A small team of researchers from China, Brazil and Switzerland has found that midair collisions that occur between grains of sand during a sandstorm lead to an increase in storm strength rather ...

(Phys.org) —Geologists continue to puzzle over the how and why of crescent-shaped sand dunes called barchans, found on Earth and on Mars. Barchans can form on the seafloor and on ice, as well as deserts. ...

(Phys.org) —A study by a pair of researchers with the University of Maine suggests that the northern coast of Peru may have been altered due to population shifts as a result of the Spanish conquest in the ...

(AP) -- In a muddy pile of sand where a pond once flowed in the Texas Panhandle, dead fish, their flesh already decayed and feasted on by maggots, lie with their mouths open. Nearby, deer munch on the equivalent ...

Rice University researchers today announced that the first field tests of "nanorust," the university's revolutionary, low-cost technology for removing arsenic from drinking water, will begin later this year ...